IS42S32800B-7TL ISSI, Integrated Silicon Solution Inc, IS42S32800B-7TL Datasheet - Page 30

• Manufacturer Part Number: IS42S32800B-7TL
• Description: IC SDRAM 256MBIT 143MHZ 86TSOP
• Manufacturer: ISSI, Integrated Silicon Solution Inc

Specifications of IS42S32800B-7TL

• Package / Case: 86-TSOPII
• Memory Size: 256M (8Mx32)
• Format - Memory: RAM
• Memory Type: SDRAM
• Speed: 143MHz
• Interface: Parallel
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Data Bus Width: 32 bit
• Organization: 2 Mbit x 32
• Maximum Clock Frequency: 143 MHz
• Access Time: 7 ns
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 3 V
• Maximum Operating Current: 150 mA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 706-1025

IS42S32800B
30
I
Figure 6.3.Clock Suspension During Burst Read (Using CKE)
BS0,1
Note:CKE to CLK disable/enable =1 clock
CAS#
A0-A9
RAS#
DQM
WE#
CKE
CLK
CS#
A10
DQ Hi-Z
Hi-Z
(Burst Length=4,CAS#Latency=3)
T0
Command
Activate
Bank A
RAx
RAx
T 1
t
CK3
T 2
T3 T4
Command
Bank A
Read
CAx
T5 T6
Ax0
T7 T8
Clock Suspend
1 Cycle
Ax1
T9 T10 T 11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22
Clock Suspend
2 Cycle
Ax2
Clock Suspend
3 Cycle
Ax3
t
HZ
Integrated Silicon Solution, Inc.
I
07/21/09
Rev. F
®